<template>
	<view class="cart-container" v-if="cart.length !== 0">
		<my-address></my-address>
		<!-- 购物车商品列表的标题区域 -->
		<view class="cart-title">
			<!-- 左侧的图标 -->
			<uni-icons type="shop" size="18"></uni-icons>
			<!-- 描述文本 -->
			<text class="cart-title-text">购物车</text>
		</view>
		<!-- 商品列表区域 -->
		<uni-swipe-action>
			<block v-for="(goods, i) in cart" :key="i">
				<uni-swipe-action-item :right-options="options" @click="removeGoods(goods)">
					<my-goods
						:goods="goods"
						:show="true"
						@radio-change="radioChangeHandler"
						@num-change="numChangeHandler"
					></my-goods>
				</uni-swipe-action-item>
			</block>
		</uni-swipe-action>
		<!-- 结算 -->
		<my-settle></my-settle>
	</view>
	<!-- 空白购物车区域 -->
	<view class="empty-cart" v-else>
		<image src="/static/cart_empty@2x.png" class="empty-img"></image>
		<text class="tip-text">空空如也~</text>
	</view>
</template>

<script>
	import badgeMix from '@/mixins/tabbar-badeg.js';
	import { mapState, mapMutations } from 'vuex';
	export default {
		mixins: [badgeMix],
		data() {
			return {
				// 滑动配置
				options: [
					{
						text: '删除',
						style: {
							backgroundColor: '#c00000',
						},
					},
				],
			};
		},
		computed: {
			// 将 m_cart 模块中的 cart 数组映射到当前页面中使用
			...mapState('m_cart', ['cart']),
		},
		methods: {
			...mapMutations('m_cart', ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
			// 改变商品勾选状态
			radioChangeHandler(e) {
				this.updateGoodsState(e);
			},
			// 改变商品数量
			numChangeHandler(e) {
				this.updateGoodsCount(e);
			},
			// 购物车删除
			removeGoods(goods) {
				this.removeGoodsById(goods.goods_id);
			},
		},
	};
</script>

<style lang="scss">
	.cart-container {
		padding-bottom: 50px;
	}
	.cart-title {
		height: 40px;
		display: flex;
		align-items: center;
		font-size: 14px;
		padding-left: 5px;
		border-bottom: 1px solid #efefef;
		.cart-title-text {
			margin-left: 10px;
		}
	}
	.empty-cart {
		display: flex;
		flex-direction: column;
		align-items: center;
		padding-top: 150px;

		.empty-img {
			width: 90px;
			height: 90px;
		}

		.tip-text {
			font-size: 12px;
			color: gray;
			margin-top: 15px;
		}
	}
</style>
